← Squares of 3- and 4-digit numbers lesson New set →

Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 712 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For abc: columns D(a) | D(ab) | D(abc) | D(bc) | D(c). D(a) = a², D(ab) = 2ab, D(abc) = 2ac + b², D(abcd) = 2ad + 2bc. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.239² =
  2. 2.831² =
  3. 3.7346² =
  4. 4.266² =
  5. 5.356² =
  6. 6.905² =
  7. 7.247² =
  8. 8.661² =
  9. 9.717² =
  10. 10.116² =
  11. 11.350² =
  12. 12.1956² =
  13. 13.478² =
  14. 14.749² =
  15. 15.448² =
  16. 16.6157² =
  17. 17.1908² =
  18. 18.1102² =
  19. 19.131² =
  20. 20.180² =
  21. 21.389² =
  22. 22.292² =
  23. 23.379² =
  24. 24.407² =
  25. 25.3078² =
  26. 26.327² =
  27. 27.7072² =
  28. 28.200² =
  29. 29.456² =
  30. 30.258² =
  31. 31.193² =
  32. 32.9718² =
  33. 33.364² =
  34. 34.450² =
  35. 35.5885² =
  36. 36.9785² =
  37. 37.361² =
  38. 38.4263² =
  39. 39.5929² =
  40. 40.221² =

Answer key

  1. 57121
  2. 690561
  3. 53963716
  4. 70756
  5. 126736
  6. 819025
  7. 61009
  8. 436921
  9. 514089
  10. 13456
  11. 122500
  12. 3825936
  13. 228484
  14. 561001
  15. 200704
  16. 37908649
  17. 3640464
  18. 1214404
  19. 17161
  20. 32400
  21. 151321
  22. 85264
  23. 143641
  24. 165649
  25. 9474084
  26. 106929
  27. 50013184
  28. 40000
  29. 207936
  30. 66564
  31. 37249
  32. 94439524
  33. 132496
  34. 202500
  35. 34633225
  36. 95746225
  37. 130321
  38. 18173169
  39. 35153041
  40. 48841

Free vedic maths lessons, practice and worksheets at talentjr.in/vedic-maths